ELECTRIC ACTUATOR

摘要

The present invention relates to a device functioning as an electric motor or actuator ( 100, 100 ') comprising: a housing ( 110 ) encapsulating a rotating member ( 120, 120' ), one or several arrangements ( 130, 130' ) for generating a magnetic field due to electrical current, a displaceable shaft ( 140, 140' ) at least partly having exterior grooves ( 141, 141 '), said rotating member having a portion ( 121, 121' ) with inner grooves ( 122, 122 ') corresponding to grooves on said shaft ( 140, 140 '). The device comprises at least one magnetic element ( 150, 150' ) arranged on an outer surface of said rotating member ( 120, 120 ') substantially perpendicular to extension direction of said grooves ( 122, 122 ') for interaction with said arrangement ( 130, 130' ) and rotating said rotating member.